package com.ht.controller;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.ht.config.AlipayConfig;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.math.BigDecimal;

/**
 * 对接支付宝支付
 */
@RestController
@RequestMapping("alipay")
@Api("支付管理Api")
@RefreshScope //自动刷新配置文件
public class AlipayController {

    /**
     *
     * @param WIDout_trade_no  商户订单号，商户网站订单系统中唯一订单号，必填
     * @param WIDtotal_amount  付款金额，必填
     * @param WIDsubject       订单名称，必填
     * @param WIDbody          商品描述，可空
     * @return
     */
    //对接支付宝进行支付
    @PostMapping
    @ApiOperation(value = "支付宝支付")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "WIDout_trade_no",value = "订单号",required = true,paramType = "path"),
            @ApiImplicitParam(name = "WIDtotal_amount",value = "付款金额",required = true,paramType = "path"),
            @ApiImplicitParam(name = "WIDsubject",value = "订单名称",required = true,paramType = "path"),
            @ApiImplicitParam(name = "WIDbody",value = "商品描述",required = false,paramType = "path")
    })
    public String alipayTradePagePay(@RequestParam String WIDout_trade_no,
                                     @RequestParam BigDecimal WIDtotal_amount,
                                     @RequestParam String WIDsubject,
                                     @RequestParam(required = false) String WIDbody){
        //获得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);

        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(AlipayConfig.return_url);
        alipayRequest.setNotifyUrl(AlipayConfig.notify_url);

        alipayRequest.setBizContent("{\"out_trade_no\":\""+ WIDout_trade_no +"\","
                + "\"total_amount\":\""+ WIDtotal_amount +"\","
                + "\"subject\":\""+ WIDsubject +"\","
                + "\"body\":\""+ WIDbody +"\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

        //请求
        String result = null;
        try {
            result = alipayClient.pageExecute(alipayRequest).getBody();
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }

        //输出
        return result;
    }

}
